package filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import pojo.User;

@WebFilter({ "/list", "/order", "/list.jsp","/order.jsp" })
public class LoginFilter implements Filter {

    /**
     * Default constructor. 
     */
    public LoginFilter() {
        // TODO Auto-generated constructor stub
    }


	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) request;
		HttpSession session = req.getSession();
		User user =  (User) session.getAttribute("user");
		if (user==null) {
			req.getRequestDispatcher("login.jsp").forward(request, response);
		}else{
			chain.doFilter(request, response);
		}
//		chain.doFilter(request, response);
		
	}


	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		
	}


	@Override
	public void destroy() {
		
	}



}
